Progressive Long Run
Workout - Progressive Long Run
- 12min @ 6'00''/km
- 75min @ 6'00''/km
- 15min @ 5'00''/km
- 5min @ 4'20''/km
- 10min @ 7'30''/km
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Intro
This is a summary of “How Long Should Long Runs Be? (Hint: LONG)” from StrengthRunning. The video covers solid practical guidance—we’ve pulled out the key takeaways so you can implement them on your runs. For complete context and detail, watch the full video.
Key Points
- Long runs anchor endurance training – they expand your mitochondrial capacity, reduce fatigue in the later miles, and build lasting aerobic fitness.
- General guideline: 20 miles or roughly 3½ hours maximum—whichever comes first—is ideal for most runners.
- Adjusted by distance goal:
- 5K/10K: 10‑15 mi per long run.
- Half‑marathon: 15‑20 mi (20 mi if feasible).
- Marathon: 18‑22 mi (or 3½ h) for typical runners; competitive athletes might add threshold or goal-pace sections.
- Dealing with injury or limitation? If you can’t safely run long distances (perhaps 10 mi is your current ceiling), switch to cycling, pool running, or other steady-effort cross-training to log similar aerobic time.
- The tradeoff: longer efforts only help when you stay under 3½ hours; beyond that window, benefits level off and injury risk increases.
Workout Example
| Goal | Weekly Long‑Run Distance | Pace Guidance | Optional Add‑On |
|---|---|---|---|
| 5K/10K | 10‑15 mi | Easy (conversational) | Combine with weekly pace-focused intervals. Dig into our 5K Speed Guide and 10K Resource. |
| Half‑Marathon | 15‑20 mi | Easy throughout; finish with 1‑2 mi at race pace if racing | None, or light strides |
| Marathon (recreational) | 18‑22 mi or 3½ h | Easy to steady; keep effort in Zone 2 | For racers: add 3‑5 mi at goal tempo. For structuring mixed-pace work, our Interval Training Guide covers the details. |
| Injury‑limited (10 mi max) | 10 mi run or 2‑3 h bike/pool at easy effort | Stay easy, focus on time under load | Add cross-training to increase aerobic volume |
Closing Note
Test these recommendations on your next session—adjust distances based on your current fitness and use the Pacing app to dial in your speeds. You’ll develop the aerobic base you’re after while keeping strain in check. Get out there.
References
- How Long Should Long Runs Be? (Hint: LONG) - YouTube (YouTube Video)